英文關鍵字
america
and
brook
calm
clark
clean
clear
creek
destination
ecology
environment
falls
forest
habitat
landscape
lewis
lower
memorial
montana
national
natural
nature
outdoors
parkland
pretty
pristine
rock
scene
scenery
scenic
serene
stream
terrain
tranquil
travel
usa
vegetation
view
vivid
water
waterfall
wild
wilderness
woods